direct digital control systems application

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Direct Digital Control Systems

Author : Mary S. Nardone
ISBN : 9781461549239
Genre : Technology & Engineering
File Size : 76. 24 MB
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Direct Digital Control Systems: Application · Commissioning offers an insightful examination of the critical role of the DDC system in the commissioning process. Included is solid coverage of microprocessor-based control systems combined with the protocols and procedures needed to effectively integrate DDC system validation into systems commissioning. This field handbook is an everyday reference on Direct Digital Control for commissioning personnel. Whether designer, contractor, air balancer, technician, vendor, commissioning agent, owner, operator or student, increasing one's knowledge of DDC control systems will directly improve project performance.

Direct Digital Control For Building Hvac Systems

Author : Michael J. Coffin
ISBN : 9781461549215
Genre : Technology & Engineering
File Size : 58. 43 MB
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Since the publication of the first edition in 1992, the HVAC industry has gone through enormous changes. As simple digital systems have given way to more complex systems, demand for information on how these systems operate, how they are best applied and how they communicate with other building control systems has grown rapidly. Direct Digital Control for Building Systems, Second Edition is thoroughly updated and expanded to include coverage of the architecture of modern digital control systems, distributed intelligence networked systems, communication protocols, the technologies and issues concerning interoperability, the latest application strategies, and defensive techniques for designing and specifying control systems. Numerous illustrations throughout help keep the subject highly accessible, and hardware, software, and systems applications are described in the most universal terms possible. This thoroughly revised second edition also contains a full section on BACnet® standard and Echelon's LonWorks® technology; their meaning, applications, and future implications. An up-to-date appendix is provided. Insights on emerging technologies in intelligent control systems and what the future holds for this dynamic field is covered throughout.

Direct Digital Control Of Building Systems

Author : H. Michael Newman
ISBN : 0471516961
Genre : Technology & Engineering
File Size : 55. 94 MB
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Direct Digital Control Of Building Systems From a brief historical look at the evolution of DDC to some thoughts on the future uses of artificial intelligence and fuzzy logic, this practical new work provides a systematic discussion of the theory and application possibilities of: ∗ Sensors and actuators––for temperature, humidity, pressure, flow, and indoor air quality; ∗ DDC hardware––including microprocessors, microcomputers, and microcontrollers; ∗ DDC software––operating system, utility, and applications software and the methods of configuring DDCs; ∗ The operator–machine interface––for field devices, workstations, and multivendor displays; ∗ Data communication systems for DDC––hardware, software, protocols and the ISO′s Open Systems Interconnection 7–layer architecture; ∗ BACnet––ASHRAE′s building automation and control networking protocol, from its design philosophy and the communication services it provides, to issues of extensibility, conformance, and specification; ∗ DDC design methodology––a complete case study, showing how to build system schematics, I/O and mode summaries, and logic flow diagrams; ∗ DDC implementation––issues of design, specification, installation, commissioning, training, and operation and maintenance.

Energy Management Systems And Direct Digital Control

Author : Richard A. Panke
ISBN : 9780881733501
Genre : Buildings
File Size : 65. 93 MB
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Written with the building owner or facility manager in mind, this plain English guide to use of energy management systems and direct digital control covers the full spectrum of hardware and software currently utilized to manage energy and control inside environments in all types of buildings and facilities. Topics include hardware and system components, system architecture, networking, communication protocol, operator/machine interface, estimating costs and savings, choosing the right system, system expansion, operation and maintenance, and operator training.

Real Time Digital Control Applications

Author : A. Alonso-Concheiro
ISBN : 9781483153278
Genre : Technology & Engineering
File Size : 27. 31 MB
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Real Time Digital Control Applications is a compilation of papers presented at the Symposium on Real-Time Digital Control Applications, sponsored by the International Federation of Automatic Control (IFAC) and the International Federation for Information Processing (IFIP), held in Guadalajara, Mexico. The event is organized to provide developing countries with the opportunity to gain insights -- from the sharing of ideas and experiences of experts from around the world to the rapid growth and development of applications of real-time digital control systems, which is considered as the basis of industrial revolution. The book presents and discusses the various scientific, industrial, and technical applications of real-time digital control systems. Applications in power generation, water, metal processing, cement, food, and manufacturing industries are shown. The text also covers applications in robotics, biomedicine, monitoring and failure detection, fuel optimization and heat control, adaptive process control, modeling, and computer software. Industrial engineers, scientists, economists, computer scientists, robotics experts, planners, and technicians will find this book invaluable.

The Fundamentals Of Hvac Direct Digital Control

Author : Frank Shadpour
ISBN : 0970447132
Genre : Air conditioning
File Size : 84. 40 MB
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Direct Digital Controls For Hvac Systems

Author : Thomas B. Hartman
ISBN : 0070269777
Genre : Technology & Engineering
File Size : 49. 24 MB
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Now you can put the full power of high-performance direct digital control (DDC) systems to work and improve indoor air quality, increase energy efficiency, enhance comfort temperatures, and ensure trouble-free building operations. This practical sourcebook shows HVAC design engineers, DDC system designers, building managers, and anyone else responsible for interior environmental control how to develop peak-performing HVAC designs using state-of-the-art DDC technology. You will find step-by-step guidance on exactly how to design, install, and maintain high-performance DDC systems. This essential engineering reference book offers proven, field-tested methods for evaluating high-performance applications software, determining the pros and cons of various programming approaches, organizing the DDC design and installation process, procuring DDC systems and details, and supervising the construction and startup of DDC systems. You'll find expert advice on how to select DDC system points and choose the most cost-effective input/output devices, how to determine optimum configurations for DDC system hardware, and how to maintain and improve performance through ongoing-system support. Filled with a wealth of real-life examples and case studies that are presented from the unique perspectives of designers, users, and system manufacturers, Direct Digital Controls for HVAC Systems is the tool you need to maximize the DDC systems in HVAC design.

Direct Digital Control

Author : John J. McGowan
ISBN : 0881731668
Genre : Digital control systems
File Size : 28. 46 MB
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This 486-page reference brings you 21 chapters detailing direct digital control specification and operation for any type of building. Loaded with practical tips for successful building automation decision-making, the handbook guides you in insuring that the building will fulfill both present and future operational demands. Topics covered include distributive direct digital control, networking and integrating automated buildings, project financing, guidelines for conducting a building control survey, sequence of operation considerations, equipment and zone level DDC control, hand-held and central operator interface, specification and procurement guidelines, DDC system management, operator training, and case studies.

Control System Design Guide

Author : George Ellis
ISBN : 9780323138444
Genre : Technology & Engineering
File Size : 23. 48 MB
Format : PDF, ePub
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This is a practical approach to control techniques. The author covers background material on analog controllers, digital controllers, and filters. Commonly used controllers are presented. Extended use of PSpice (a popular circuit simulation program) is used in problem solving. The book is also documented with 50 computer programs that circuit designers can use. Explains integration of control systems with a personal computer**Compares numerous control algorithms in digital and analog form**Details the use of SPICE in problem solving**Presents modeling concepts for linear and nonlinear systems**Examines commonly used controllers

Digital Power Electronics And Applications

Author : Fang Lin Luo
ISBN : 9780080459028
Genre : Technology & Engineering
File Size : 76. 53 MB
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The purpose of this book is to describe the theory of Digital Power Electronics and its applications. The authors apply digital control theory to power electronics in a manner thoroughly different from the traditional, analog control scheme. In order to apply digital control theory to power electronics, the authors define a number of new parameters, including the energy factor, pumping energy, stored energy, time constant, and damping time constant. These parameters differ from traditional parameters such as the power factor, power transfer efficiency, ripple factor, and total harmonic distortion. These new parameters result in the definition of new mathematical modeling: • A zero-order-hold (ZOH) is used to simulate all AC/DC rectifiers. • A first-order-hold (FOH) is used to simulate all DC/AC inverters. • A second-order-hold (SOH) is used to simulate all DC/DC converters. • A first-order-hold (FOH) is used to simulate all AC/AC (AC/DC/AC) converters. * Presents most up-to-date methods of analysis and control algorithms for developing power electronic converters and power switching circuits * Provides an invaluable reference for engineers designing power converters, commercial power supplies, control systems for motor drives, active filters, etc. * Presents methods of analysis not available in other books.

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